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Finding the Fourth Proportional to 334,987.56, 502,198.73 and 145,305.12

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Solution

The fourth proportional to 334,987.56, 502,198.73 and 145,305.12 is: 217,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,987.56 : 502,198.73 = 145,305.12 : x
  2. Step 2: Convert to fraction form
    334,987.56/502,198.73 = 145,305.12/x
  3. Step 3: Cross multiply
    334,987.56x = 502,198.73 × 145,305.12
  4. Step 4: Simplify right side
    334,987.56x = 72,972,046,726.50
  5. Step 5: Solve for x
    x = 72,972,046,726.50/334,987.56
  6. Step 6: Final answer
    x = 217,835.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.